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1002222231213 = 3790915249683
BaseRepresentation
bin11101001010110010001…
…10011001111010101101
310112210220120221110121210
432211121012121322231
5112410022342344323
62044225312345033
7132260000256150
oct16453106317255
93483816843553
101002222231213
1135704935a115
121422a2245179
13736807b2058
143671762dc97
151b10b8c5293
hexe959199ead

1002222231213 has 16 divisors (see below), whose sum is σ = 1527364061696. Its totient is φ = 572635312560.

The previous prime is 1002222231209. The next prime is 1002222231277. The reversal of 1002222231213 is 3121322222001.

It is not a de Polignac number, because 1002222231213 - 22 = 1002222231209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002222231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002222131213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2433931 + ... + 2815752.

It is an arithmetic number, because the mean of its divisors is an integer number (95460253856).

Almost surely, 21002222231213 is an apocalyptic number.

It is an amenable number.

1002222231213 is a deficient number, since it is larger than the sum of its proper divisors (525141830483).

1002222231213 is an equidigital number, since it uses as much as digits as its factorization.

1002222231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258784.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1002222231213 its reverse (3121322222001), we get a palindrome (4123544453214).

The spelling of 1002222231213 in words is "one trillion, two billion, two hundred twenty-two million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 7 21 9091 27273 63637 190911 5249683 15749049 36747781 110243343 47724868153 143174604459 334074077071 1002222231213